Installation guide

notadjusted;however,it isavailablefor
temperaturecontrolling.
• SettingParameter:Press_ for 6seconds.Start
parametermenuandPA{menupassword)
flashing.Enterthepasswordbypressing[]or
_. Press_ againto choosetheparameter.
Press[] or _ thentheparametercanbe
displayedandadjusted.Aftertheadjustment,if
nobuttonhasbeenpressedafter30seconds,
thesystemwill restorethenewparameterand
gobackto normaloperations.
• Changingmenupassword(CPA):TheCPAcan
becheckedorchangedonlyafterthecorrect
menupasswordhasbeenentered.Whenit
showsCPA,press[] or _then thepresent
passwordisdisplayedandcanbechangedtoa
newpassword.Press_ to confirmthenew
password.(Pleasememorizethenewpassword
oryoucanneveradjustotherparameters.)
• Thefactorydefaultresumption:Press
buttonfor 1second and then press [ button
simultaneously for 6 seconds. The indicator will
flash and then all parameters will be restored to
back to the factory defaults. After 10 seconds, it
will return to normal operation.
Parameter details
• Temperature controlling: After turning on for
the delay time {e4), the compressor starts
operating when cold-room temperature i> (set
temperature +hysteresis), and will off when
cold-room temperature <i set temperature. To
protect the compressor it can be re-started,
unless the time when the compressor stops
every time is longer than the delay time (E4).
• Evaporator fan operating function:
F5 is set "00", parallel with compressor.
F5 is set "01", continuous running (except defrost).
• Electric heater defrost: evaporator sensor
temperature < defrost termination temperature
(F3), the heater will switch on and the defrost
will start.
After a defrost interval, it begins the automatic
defrost function, e.g.: When the evaporator sensor
temperature < defrost termination temperature
{F3), the defrost LED will turn on, the compressor
and fan will stop, and the heater will start. When
the evaporator sensor temperature i> defrost
termination temperature or defrost duration (F1)
ends, the heater and defrost will stop after the
draining time (F6). The cold-room temperature i>
{set temperature + hysteresis), the compressor will
starts and go back to refrigeration status.
When the defrost interval time {f2) is set"00", the
function of the automatics defrost will be cancelled.
Temperature displayed when defrost: If F4 is set
"01", it displays the temperature when the defrost
starts. After defrost, It will continue to display this
temp for 20 min and the defrost LED will begin
flashing. It will then come back to normal
temperature.
• Controlling the evaporator fan after defrost:
Controlling by time: When F7 is set "00" after
defrost, the compressor works for F8 and then
the fan restarts. After defrost and the first
working mode, the fan will follow the mode of
F5.
Controlling by temperature: When F7 is set "01"
after defrost, when the evaporator temperature
reaches F9, the fan restarts. After defrost and
the first working mode, the fan will follow the
mode of F5.
• Sensor failure work mode: If the cold-room
sensor is short circuited or overheated, "HH"
will be displayed. If the cold-room sensor is in
an open circuit or the temperature is too low
then "LL" is displayed. At that time the
compressor will automatically go to a cycle of
45 min on and 15 min off. When the evaporator
sensor fails or surpasses the displayed range,
the defrost termination will be just controlled
by the defrost duration.